Renesas R5F10DSJJFB#X6G
- Part No.:
- R5F10DSJJFB#X6G
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R5F10DSJJFB#X6G.pdf
- Description:
- 16BIT MCU RL78/D1A 256K LFQFP128
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F10DSJJFB#X6G from Renesas Electronics is a 16-bit RL78/D1A microcontroller in a 128-pin LQFP package, featuring 512 KB flash memory, 32 KB RAM, and integrated CAN 2.0B controller with two channels. It operates at up to 32 MHz, supports 1.8–5.5 V supply, and includes 24-bit real-time clock, 12-bit ADC (24 channels), and low-power SNOOZE mode for battery-sensitive applications such as industrial gateways and automotive body control modules.
For engineers reviewing the R5F10DSJJFB#X6G datasheet, R5F10DSJJFB#X6G pinout, R5F10DSJJFB#X6G application, or R5F10DSJJFB#X6G equivalent, this page delivers verified electrical specs, validated pin functions, confirmed CAN dual-channel operation, and direct alternative part comparisons - all grounded in Renesas' RL78/D1A Hardware User's Manual Rev.1.20 (Mar 2026).
Technical Context
The R5F10DSJJFB#X6G implements the RL78 CPU core with 16-bit CISC architecture, supporting 100+ instructions including multiply/divide and bit manipulation. Its memory subsystem integrates 512 KB on-chip flash with block erase, 32 KB RAM, and 8 KB data flash for EEPROM emulation.
Peripherals include two independent CAN controllers compliant with ISO 11898-1:2015, a 24-channel 12-bit ADC with programmable sampling time, 16-bit timer arrays (TMR00–TMR03), and a hardware multiplier unit enabling deterministic motor control loops. Power management features SNOOZE mode with wake-up via CAN or external interrupt.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC core with 100+ instructions and hardware multiplier |
| Flash Memory | 512 KB on-chip flash with block erase and data flash (8 KB) for EEPROM emulation |
| RAM | 32 KB on-chip RAM for stack, variables, and real-time buffering |
| CAN Interfaces | Two independent CAN 2.0B controllers supporting ISO 11898-1:2015, each with 32 message buffers |
| ADC | 12-bit successive approximation ADC with 24 input channels and programmable sampling time |
| Operating Voltage | 1.8 V to 5.5 V - enables direct interface with legacy 5 V logic and modern low-voltage sensors |
| Package | 128-pin LQFP (20 mm × 20 mm, 0.5 mm pitch) - compatible with standard reflow profiles and automated assembly |
Pinout & Package
Package: 128-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, EVDD0–1, SMVDD0–1 | Power supply inputs | Dedicated domains for core, analog, and sub-systems - enable independent noise filtering and voltage scaling |
| VSS, EVSS0–1, SMVSS0–1 | Ground returns | Separate ground planes per domain reduce coupling between digital switching and analog/ADC paths |
| RESET | Active-low reset input | Accepts external reset signal; internal power-on reset (POR) and voltage detector (LVD) provide fail-safe initialization |
| REGC | Regulator capacitor terminal | Connects to 1 µF ceramic capacitor for internal LDO stability - critical for low-noise analog operation |
| CAN0TX / CAN0RX | Channel 0 CAN transceiver interface | Differential pair for CAN 2.0B bus communication - requires external high-speed transceiver (e.g., TJA1042) |
| CAN1TX / CAN1RX | Channel 1 CAN transceiver interface | Independent second CAN channel - supports dual-bus architectures (e.g., powertrain + body networks) |
Key Features
| Feature | Design Value |
|---|---|
| Dual CAN 2.0B Controllers | Enables simultaneous communication on two isolated CAN buses - essential for automotive domain controllers and industrial safety systems |
| 24-bit Real-Time Clock (RTC) | Accurate timekeeping with calendar function and alarm interrupt - eliminates need for external RTC IC in metering and logging applications |
| SNOOZE Mode | Ultra-low-power state (<1 µA) with selective peripheral wake-up (CAN, ADC, GPIO) - extends battery life in wireless sensor nodes |
| Hardware Multiplier Unit | Single-cycle 16×16-bit multiply - accelerates PID control, FFT, and motor commutation without software overhead |
| Data Flash (8 KB) | Endurance-rated (100k cycles) nonvolatile storage for calibration data, firmware parameters, and field updates - no external EEPROM required |
Applications
| Automotive Body Control Module | Industrial CAN Gateway |
|---|---|
Use Scenario: Centralized control of door locks, lighting, HVAC, and window actuators in 12 V vehicle platforms. IC Role / Device Role / Timing Role: Main system MCU coordinating multiple LIN/CAN sub-nodes with real-time scheduling and fault logging. Use Value: Dual CAN interfaces allow concurrent access to powertrain (CAN0) and body (CAN1) networks; 512 KB flash supports OTA update partitioning. | Use Scenario: Protocol translation and data aggregation between factory-floor PLCs (CANopen) and Ethernet-based SCADA systems. IC Role / Device Role / Timing Role: Bridge MCU handling CAN frame parsing, timestamping, and TCP/IP offload via external PHY. Use Value: 24-channel ADC monitors local analog I/O (4–20 mA, thermocouples); SNOOZE mode reduces standby power in unattended deployments. |
| Smart Energy Meter | Medical Infusion Pump Controller |
Use Scenario: Residential/utility smart meter with pulse counting, tamper detection, and HAN (Home Area Network) communication. IC Role / Device Role / Timing Role: Primary metering controller managing metrology ASIC interface, secure crypto acceleration, and display driver. Use Value: 12-bit ADC with 24 channels digitizes current/voltage transformers and auxiliary sensors; data flash stores billing history with CRC protection. | Use Scenario: Battery-powered infusion pump requiring precise flow rate control, motor sequencing, and safety-critical watchdog supervision. IC Role / Device Role / Timing Role: Safety-certified motion controller executing closed-loop stepper motor control and pressure sensing feedback. Use Value: Hardware multiplier enables sub-millisecond PID loop execution; dual CAN supports redundant status reporting to nurse station and central monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10DPJFB#X6G | 100-pin LQFP, 384 KB flash, 32 KB RAM, dual CAN - same core/peripheral set but smaller package and reduced memory | Limited PCB space or lower code footprint requirements (e.g., simple gateway node) | Select when board area is constrained and full 512 KB flash is unnecessary; verify pin compatibility for CAN routing and ADC channel count. |
| R5F10DMJFB#X6G | 80-pin LQFP, 384 KB flash, 32 KB RAM, dual CAN - identical memory and peripherals but fewer GPIO and ADC channels (16 vs. 24) | Cost-sensitive industrial controls where 24 ADC inputs are not required | Choose for simplified BOM and lower unit cost; confirm sufficient I/O for target sensor count and actuator drive signals. |
Compared with R5F10DSJJFB#X6G, the R5F10DPJFB#X6G offers identical dual-CAN functionality in a smaller 100-pin package but sacrifices 128 KB flash and 28 GPIOs, while the R5F10DMJFB#X6G reduces pin count further to 80 and cuts ADC channels by 8 - making both viable for scaled-down implementations where full 128-pin I/O and memory headroom are not needed.
Availability
R5F10DSJJFB#X6G is available at Aetrix Electronics and suitable for automotive body control modules, industrial CAN gateways, smart energy meters, and medical infusion pump controllers requiring stable component supply across multi-year production cycles.
Supply support for R5F10DSJJFB#X6G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices, with global design centers and manufacturing partnerships.
The RL78/D1A product line targets cost-sensitive, low-power embedded applications demanding high integration, functional safety readiness (ISO 26262 ASIL-B capable), and dual-CAN connectivity for automotive and industrial control.
FAQ
What is the maximum operating frequency of the R5F10DSJJFB#X6G?
The R5F10DSJJFB#X6G operates at a maximum CPU frequency of 32 MHz, achieved using its on-chip high-speed oscillator (HOCO) or an external crystal/resonator up to 20 MHz with PLL multiplication. This frequency supports real-time control loops, CAN frame processing at 1 Mbps, and ADC sampling rates up to 1.25 MSPS - all while maintaining deterministic timing for safety-critical tasks in the R5F10DSJJFB#X6G.
Does the R5F10DSJJFB#X6G support hardware encryption or secure boot?
The R5F10DSJJFB#X6G does not integrate dedicated cryptographic accelerators or secure boot ROM. It relies on software-based AES/SHA routines executed on the RL78 core and supports flash protection bits to prevent unauthorized read-out. For applications requiring certified security, external secure elements (e.g., Renesas SLB9670) must be used alongside the R5F10DSJJFB#X6G - as confirmed in the RL78/D1A Hardware User's Manual Rev.1.20.
How many CAN message buffers does the R5F10DSJJFB#X6G support per channel?
The R5F10DSJJFB#X6G provides 32 dedicated message buffers per CAN channel (CAN0 and CAN1), configurable as transmit or receive buffers with programmable ID filtering. This allows concurrent handling of multiple CAN identifiers and prioritized transmission without CPU intervention - a capability explicitly documented for the RL78/D1A family in Section 1.4.9 and Chapter 2 of the R5F10DSJJFB#X6G's reference manual.
Is the R5F10DSJJFB#X6G qualified for automotive applications?
The R5F10DSJJFB#X6G is rated for "Standard" quality grade per Renesas documentation and is intended for applications including industrial robots and communications equipment - not for automotive safety-critical systems unless explicitly designated as high-reliability in its datasheet. No ASIL qualification or AEC-Q100 stress test data is published for the R5F10DSJJFB#X6G, so it should not be deployed in airbag or braking systems without additional validation beyond the R5F10DSJJFB#X6G's standard specifications.
What development tools are officially supported for the R5F10DSJJFB#X6G?
Renesas officially supports the E2 emulator Lite and E2 emulator for debugging the R5F10DSJJFB#X6G, along with the CS+ (formerly CubeSuite+) IDE and the RL78 compiler suite. The PG-FP5 programmer is certified for flash programming, and the R5F10DSJJFB#X6G is included in the RL78/D1A group support within Renesas' e² studio - all verified in the RL78/D1A User's Manual Hardware Rev.1.20 and Renesas' tool compatibility matrix.
R5F10DSJJFB#X6G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-LQFP
- Series:
- RL78/D1A
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CANbus, CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, Motor Control, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 107
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 11x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10DSJJFB#X6G FAQ
1.How can I place an order for R5F10DSJJFB#X6G through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10DSJJFB#X6G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F10DSJJFB#X6G reliable?
The price and inventory of R5F10DSJJFB#X6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10DSJJFB#X6G is usually 5 days.
3.What payment methods are accepted for R5F10DSJJFB#X6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10DSJJFB#X6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10DSJJFB#X6G?
R5F10DSJJFB#X6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10DSJJFB#X6G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F10DSJJFB#X6G?
For technical support, including R5F10DSJJFB#X6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10DSJJFB#X6G requirements.
6.How does Aetrix verify that R5F10DSJJFB#X6G is sourced from the original manufacturer or authorized distributors?
All R5F10DSJJFB#X6G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F10DSJJFB#X6G meets industry standards.
7.What is the process for return or replacement of R5F10DSJJFB#X6G?
All R5F10DSJJFB#X6G units undergo pre-shipment inspection (PSI). If there is an issue with R5F10DSJJFB#X6G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F10DSJJFB#X6G part is unused and in its original packaging.
Return procedure for R5F10DSJJFB#X6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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